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Finding the Fourth Proportional to 492,040.40, 737,599.80 and 385,365.20

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Solution

The fourth proportional to 492,040.40, 737,599.80 and 385,365.20 is: 577,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,040.40 : 737,599.80 = 385,365.20 : x
  2. Step 2: Convert to fraction form
    492,040.40/737,599.80 = 385,365.20/x
  3. Step 3: Cross multiply
    492,040.40x = 737,599.80 × 385,365.20
  4. Step 4: Simplify right side
    492,040.40x = 284,245,294,446.96
  5. Step 5: Solve for x
    x = 284,245,294,446.96/492,040.40
  6. Step 6: Final answer
    x = 577,686.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.